DescriptionNATCO hollow tile advertisement circa 1920.jpg
English: National Fireproofing Company (NATCO) advertisement for hollow clay tile (also called "structural clay tile") showing different styles and types of tile. From the pages of The Architectural Forum, vol. 33, issue 5-6 (1920).
Date
Source
The Architectural Forum
Author
National Fireproofing Company (NATCO)
Licensing
Public domainPublic domainfalsefalse
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{{Information |Description={{en|1=National Fireproofing Company (NATCO) advertisement for hollow clay tile (also called "structural clay tile") showing different styles and types of tile. From the pages of The Architectural Forum, vol. 30, issue 5-6 (1920